If you are a fan of Captain Underpants comics, then you know the guy from our fanart comics cursor with Benjamin Krupp - he is the principal of Jerome Horwitz Elementary School. Benny has a long history with two fourth-grade students - George and Harold - because of their pranks, wisecracks, and comic books. Benjamin's alter ego is Captain Underpants, which he is unaware of. Mr. Krupp is depicted as a bald, overweight man with a pear-shaped body and a piggish nose.